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公开(公告)号：US12103857B1
公开(公告)日：2024-10-01
申请号：US18303062
申请日：2023-04-19
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Junxi Li , Da Zhang , Zhipeng Xie , Wenhui Ma , Bin Yang
IPC: C01B35/04
CPC classification number: C01B35/04
Abstract: A rapid preparation method of transition metal borides includes steps of: using a tungsten rod as the cathode, and a block mixture of boron powder and metal oxide as the anode, the block mixture and the tungsten rod are placed in an plasma device; the plasma device is evacuated, and then filled with a buffer gas and an electric arc is started to obtain a transition metal boride. The present disclosure adopts the direct current arc plasma method with the advantages of simple operation, low cost, environmental friendliness and controllable reaction atmosphere to prepare the transition metal boride, the preparation process is simple, the preparation process is fast, and the environment will not be affected.
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公开(公告)号：US12230799B1
公开(公告)日：2025-02-18
申请号：US18816719
申请日：2024-08-27
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Pan Liu , Minjie Hou , Da Zhang , Bin Yang
IPC: H01M4/583 , H01M4/02 , H01M4/04 , H01M10/054
Abstract: A method for preparing a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material is provided, and the method includes the following steps: the carbon nanotubes are modified by a dielectric barrier plasma device; the modified carbon nanotubes are mixed and stirred with a sodiophilic metal salt to obtain a precursor slurry; the precursor slurry is dried, placed in a tube furnace after drying, and heated by introducing a reducing gas to react, thereby obtaining a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material. The electrode material prepared by the method has a stable structure, excellent electrical conductivity, and excellent sodium affinity, and can be applied to anode-free sodium metal battery electrode materials. The entire preparation process is controllable, the synthesis cycle is short, and the operation is simple.
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公开(公告)号：US11981569B2
公开(公告)日：2024-05-14
申请号：US18304316
申请日：2023-04-20
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Zhipeng Xie , Da Zhang
Abstract: A method includes the following steps: a first step: the material containing heteroatom and graphite powder are mixed for a preset time by grinding, and the molar ratio of heteroatom to carbon atom is 1%-10%, then the heteroatom precursors are obtained; a second contact step: the heteroatom precursor is filled into a graphite rod with holes and compacted, then the graphite rod is dried for a preset time to obtain a plasma anode and using a DC arc plasma device to prepare the graphite anode into heteroatom-doped CNHs; a third contact step: the heteroatom-doped CNHs are dispersed in a reducing solution, a platinum salt is added to stir evenly, the reduction reaction is carried out by heating and stirring, and after centrifugation, washing and drying, a catalyst with platinum loading is obtained.
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公开(公告)号：US12051776B2
公开(公告)日：2024-07-30
申请号：US18537953
申请日：2023-12-13
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY , JIANGSU FENGCHI CARBON BASED NEW MATERIAL RESEARCH INSTITUTE CO., LTD
Inventor： Feng Liang , Minjie Hou , Da Zhang , Tao Zhang , Sunzu Xiang , Wenlong Jiang , Baoqiang Xu , Bin Yang
IPC: H01M10/0562
CPC classification number: H01M10/0562 , H01M2300/0068
Abstract: A method for preparing a sodium super ionic conductor solid electrolyte by low-dimensional crystallization belongs to a field of energy materials. The method is based on the theory of negative ion coordination polyhedron growth unit, and uses low-temperature plasma as a protective gas of a spray drying equipment. While evaporating the solvent in a sodium super ionic conductor solid electrolyte precursor slurry, plasma active groups modify the particle surface of the sodium super ionic conductor solid electrolyte precursor particles in-situ. A free space dimension of crystal growth in the crystallization process is reduced, and directional growth of crystals in the solid phase sintering process is induced. Secondly, the dispersion stability of the sodium super ionic conductor solid electrolyte precursor particles is improved. Compared with the traditional high-temperature solid-state sintering process, the method has the advantages of fast crystallization speed, high crystal purity and integrity, good compactness, and uniform particles.
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Patent Agency Ranking
公开(公告)号：US11817552B2
公开(公告)日：2023-11-14
申请号：US17993893
申请日：2022-11-24
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY , JIANGSU FENGCHI CARBON-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.
Inventor： Feng Liang , Minjie Hou , Da Zhang , Tao Zhang , Sunzu Xiang , Wenlong Jiang , Baoqiang Xu , Bin Yang
IPC: H01M10/0565
CPC classification number: H01M10/0565 , H01M2300/0082
Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.
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公开(公告)号：US11667530B1
公开(公告)日：2023-06-06
申请号：US17964887
申请日：2022-10-12
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Zhipeng Xie , Da Zhang
CPC classification number: C01B32/18 , B01J21/18 , B01J23/42 , B01J35/0013 , B01J37/08
Abstract: A method includes the following steps: a first step: the material containing heteroatom and graphite powder are mixed for a preset time by grinding, and the molar ratio of heteroatom to carbon atom is 1%-10%, then the heteroatom precursors are obtained; a second contact step: the heteroatom precursor is filled into a graphite rod with holes and compacted, then the graphite rod is dried for a preset time to obtain a plasma anode and using a DC arc plasma device to prepare the graphite anode into heteroatom-doped CNHs; a third contact step: the heteroatom-doped CNHs are dispersed in a reducing solution, a platinum salt is added to stir evenly, the reduction reaction is carried out by heating and stirring, and after centrifugation, washing and drying, a catalyst with platinum loading is obtained.
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公开(公告)号：US11827518B1
公开(公告)日：2023-11-28
申请号：US18315162
申请日：2023-05-10
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Zhipeng Xie , Da Zhang , Long Ma , Yichang Liu , Junxi Li
IPC: C01B32/18
CPC classification number: C01B32/18 , C01P2002/02 , C01P2004/32 , C01P2004/64 , C01P2004/88 , C01P2006/80
Abstract: The present disclosure relates to a method for production of CNHs composite material. The method includes the following steps: a first step: the silicon particles and graphite powder are mixed for a preset time by planetary ball mill device, and the weight ratio of silicon element to carbon element is 10-40%, then the Si/C precursor is obtained; a second contact step: the Si/C precursor is pressed into a precursor block, then using precursor block to the CNHs composite material by a DC arc plasma device.
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公开(公告)号：US11473171B1
公开(公告)日：2022-10-18
申请号：US17828063
申请日：2022-05-31
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Zhipeng Xie , Zhenggang Tang , Da Zhang , Bin Yang
Abstract: The invention discloses a method about the integration of the metallurgical purification of metallic gadolinium and the preparation of gadolinium oxide nanoparticles (GONPs) by arc plasma. The method includes the metallurgical purification and the nanoparticle preparation. Firstly, the gadolinium ingot and a tungsten rod respectively act as an anode and a cathode. After the arc furnace is evacuated and then is filled with a working atmosphere, impurities in the gadolinium ingot are removed in the form of volatilization to obtain purified gadolinium by the first arc discharge. Whereafter, the purified gadolinium and the tungsten rod are used as the anode and cathode. After the arc furnace also is evacuated and then also is filled with a working atmosphere, GONPs are obtained from the inner wall of the arc furnace though the second arc discharge. The metallurgical purification of metallic gadolinium and the preparation of GONPs were integrated by arc plasma.
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公开(公告)号：US11370663B1
公开(公告)日：2022-06-28
申请号：US17548606
申请日：2021-12-13
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Feng Liang , Zhipeng Xie , Zhenggang Tang , Xiecheng Yang , Da Zhang , Minjie Hou , Yao Kang , Bin Yang , Yongnian Dai
IPC: C01B32/18 , H01M10/0525 , H01M4/583 , H01M10/54
Abstract: The present disclosure relates to a method for production of nitrogen-doped single wall carbon nanohorns from anode graphite of wasted lithium-ion batteries. The method includes the following steps: a first step: forming recycled graphite powder into graphite blocks; and, a second contact step: when the first step is completed, using a DC arc plasma device to produce the graphite blocks into N-SWCNHs.
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